diff --git a/src/structures/cl_args.cpp b/src/structures/cl_args.cpp
index caf7c08d..5dfeac31 100644
--- a/src/structures/cl_args.cpp
+++ b/src/structures/cl_args.cpp
@@ -10,6 +10,7 @@ All rights reserved (see LICENSE).
 #include <cassert>
 
 #include "structures/cl_args.h"
+#include "utils/helpers.h"
 
 namespace vroom::io {
 
@@ -75,28 +76,10 @@ void update_port(Servers& servers, std::string_view value) {
   }
 }
 
-unsigned CLArgs::get_depth(unsigned exploration_level) {
-  return exploration_level;
-}
-
-unsigned CLArgs::get_nb_searches(unsigned exploration_level) {
-  assert(exploration_level <= MAX_EXPLORATION_LEVEL);
-
-  unsigned nb_searches = 4 * (exploration_level + 1);
-  if (exploration_level >= 4) {
-    nb_searches += 4;
-  }
-  if (exploration_level == MAX_EXPLORATION_LEVEL) {
-    nb_searches += 4;
-  }
-
-  return nb_searches;
-}
-
 void CLArgs::set_exploration_level(unsigned exploration_level) {
-  depth = get_depth(exploration_level);
+  depth = utils::get_depth(exploration_level);
 
-  nb_searches = get_nb_searches(exploration_level);
+  nb_searches = utils::get_nb_searches(exploration_level);
 }
 
 } // namespace vroom::io
diff --git a/src/structures/cl_args.h b/src/structures/cl_args.h
index 53f3c131..71b4ef9e 100644
--- a/src/structures/cl_args.h
+++ b/src/structures/cl_args.h
@@ -37,10 +37,6 @@ struct CLArgs {
   unsigned nb_searches;                      // derived from -x
   unsigned depth;                            // derived from -x
 
-  static unsigned get_depth(unsigned exploration_level);
-
-  static unsigned get_nb_searches(unsigned exploration_level);
-
   void set_exploration_level(unsigned exploration_level);
 };
 
diff --git a/src/structures/vroom/input/input.cpp b/src/structures/vroom/input/input.cpp
index 6ac64d6d..74df05fd 100644
--- a/src/structures/vroom/input/input.cpp
+++ b/src/structures/vroom/input/input.cpp
@@ -1118,6 +1118,17 @@ std::unique_ptr<VRP> Input::get_problem() const {
   return std::make_unique<CVRP>(*this);
 }
 
+Solution Input::solve(unsigned exploration_level,
+                      unsigned nb_thread,
+                      const Timeout& timeout,
+                      const std::vector<HeuristicParameters>& h_param) {
+  return solve(utils::get_nb_searches(exploration_level),
+               utils::get_depth(exploration_level),
+               nb_thread,
+               timeout,
+               h_param);
+}
+
 Solution Input::solve(unsigned nb_searches,
                       unsigned depth,
                       unsigned nb_thread,
diff --git a/src/structures/vroom/input/input.h b/src/structures/vroom/input/input.h
index 7f2478ed..c7122e2e 100644
--- a/src/structures/vroom/input/input.h
+++ b/src/structures/vroom/input/input.h
@@ -16,7 +16,6 @@ All rights reserved (see LICENSE).
 #include <unordered_map>
 
 #include "routing/wrapper.h"
-#include "structures/cl_args.h"
 #include "structures/generic/matrix.h"
 #include "structures/typedefs.h"
 #include "structures/vroom/matrices.h"
@@ -194,23 +193,16 @@ class Input {
   // Returns true iff both vehicles have common job candidates.
   bool vehicle_ok_with_vehicle(Index v1_index, Index v2_index) const;
 
-  Solution solve(unsigned exploration_level,
+  Solution solve(unsigned nb_searches,
+                 unsigned depth,
                  unsigned nb_thread,
                  const Timeout& timeout = Timeout(),
                  const std::vector<HeuristicParameters>& h_param =
-                   std::vector<HeuristicParameters>()) {
-    // Overload designed to expose the same interface as the `-x`
-    // command-line flag for out-of-the-box setup of exploration
-    // level.
-    return solve(io::CLArgs::get_nb_searches(exploration_level),
-                 io::CLArgs::get_depth(exploration_level),
-                 nb_thread,
-                 timeout,
-                 h_param);
-  }
+                   std::vector<HeuristicParameters>());
 
-  Solution solve(unsigned nb_searches,
-                 unsigned depth,
+  // Overload designed to expose the same interface as the `-x`
+  // command-line flag for out-of-the-box setup of exploration level.
+  Solution solve(unsigned exploration_level,
                  unsigned nb_thread,
                  const Timeout& timeout = Timeout(),
                  const std::vector<HeuristicParameters>& h_param =
diff --git a/src/utils/helpers.h b/src/utils/helpers.h
index 8a061ff3..e0917078 100644
--- a/src/utils/helpers.h
+++ b/src/utils/helpers.h
@@ -38,6 +38,24 @@ inline UserCost add_without_overflow(UserCost a, UserCost b) {
   return a + b;
 }
 
+inline unsigned get_depth(unsigned exploration_level) {
+  return exploration_level;
+}
+
+inline unsigned get_nb_searches(unsigned exploration_level) {
+  assert(exploration_level <= MAX_EXPLORATION_LEVEL);
+
+  unsigned nb_searches = 4 * (exploration_level + 1);
+  if (exploration_level >= 4) {
+    nb_searches += 4;
+  }
+  if (exploration_level == MAX_EXPLORATION_LEVEL) {
+    nb_searches += 4;
+  }
+
+  return nb_searches;
+}
+
 INIT get_init(std::string_view s);
 
 SORT get_sort(std::string_view s);